sf-testing: Salesforce Test Execution & Coverage Analysis

Use this skill when the user needs Apex test execution and failure analysis: running tests, checking coverage, interpreting failures, improving coverage, and managing a disciplined test-fix loop for Salesforce code.

When This Skill Owns the Task

Use

sf-testing

when the work involves:

• sf apex run test

  workflows
• Apex unit-test failures
• code coverage analysis
• identifying uncovered lines and missing test scenarios
• structured test-fix loops for Apex code

Delegate elsewhere when the user is:

• writing or refactoring production Apex → sf-apex
• testing Agentforce agents → sf-ai-agentforce-testing
• testing LWC with Jest → sf-lwc

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Required Context to Gather First

Ask for or infer:

• target org alias
• desired test scope: single class, specific methods, suite, or local tests
• coverage threshold expectation
• whether the user wants diagnosis only or a test-fix loop
• whether related test data factories already exist

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Recommended Workflow

1. Discover test scope

Identify:

• existing test classes
• target production classes
• test data factories / setup helpers

2. Run the smallest useful test set first

Start narrow when debugging a failure; widen only after the fix is stable.

3. Analyze results

Focus on:

• failing methods
• exception types and stack traces
• uncovered lines / weak coverage areas
• whether failures indicate bad test data, brittle assertions, or broken production logic

4. Run a disciplined fix loop

When the issue is code or test quality:

• delegate code fixes to sf-apex when needed
• add or improve tests
• rerun focused tests before broader regression

5. Improve coverage intentionally

Cover:

• positive path
• negative / exception path
• bulk path (251+ records where appropriate)
• callout or async path when relevant

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High-Signal Rules

• default to

  SeeAllData=false

• every test should assert meaningful outcomes
• test bulk behavior, not just single-record happy paths
• use factories /

  @TestSetup

  when they improve clarity and speed
• pair

  Test.startTest()

  with

  Test.stopTest()

  when async behavior matters
• do not hide flaky org dependencies inside tests

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Output Format

When finishing, report in this order:

1. What tests were run
2. Pass/fail summary
3. Coverage result
4. Root-cause findings
5. Fix or next-run recommendation

Suggested shape:

Test run: <scope>
Org: <alias>
Result: <passed / partial / failed>
Coverage: <percent / key classes>
Issues: <highest-signal failures>
Next step: <fix class, add test, rerun scope, or widen regression>

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Cross-Skill Integration

Need	Delegate to	Reason
fix production code or author tests	sf-apex	code generation and repair
create bulk / edge-case data	sf-data	realistic test datasets
deploy updated tests	sf-deploy	rollout
inspect detailed runtime logs	sf-debug	deeper failure analysis

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Reference Map

Start here

• references/cli-commands.md
• references/test-patterns.md
• references/testing-best-practices.md
• references/test-fix-loop.md

Specialized guidance

• references/mocking-patterns.md
• references/performance-optimization.md
• assets/

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Score Guide

Score	Meaning
108+	strong production-grade test confidence
96–107	good test suite with minor gaps
84–95	acceptable but strengthen coverage / assertions
< 84	below standard; revise before relying on it